string(265) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%B7%98%E5%AE%9D%E4%BB%A3%E9%94%80%E9%9C%80%E8%A6%81%E6%8A%95%E5%85%A5%E5%A4%9A%E5%B0%91%E9%92%B1 => Failed to connect to 14.18.117.71 port 38093: Connection refused"
淘宝代销需要投入多少钱
